Alloy mixer



l. A. BURNETT.

ALLOY MIXER.

APPLICATION r1120 11 11.9, 192:.

Patented Apr. 25, 1922.

9 m 8 w m w 1 0 a a 1. W 1. L a 1 w 7 M u 6 6Q z I r F 6 n hand-pieces, by dentist's, forthoroughly and quickly mixing the ingredients ofgalloy used for dental purposes yet; it is applicable-for ALILQY. Minn e.

cago, in thecoun ty; of Cook and" Stateof Illinois, have invented certain newand use if w iul Improvements in an Alloy Mixeigof which the following is a speclfi'cati'on. This invention relates-t0. improvements 1n vmeans for. converting rotary motion into reciprocatorymotion, and has particular'relation-to a device of this character, which, while it is primarily intended for use inconnectionwith motor-driven" dental-engine use as an agitator-or mi'xer for -ot l1er purposes or other ingredients or arti-clesfand If desire it to be understoodthat-it naybe'em ployed in connection with any suitable driv; ing forceandjfor any purposethat it may be found to be adapted, withouta departure] from the spirit of the invention;

ln'the accompanying drawi-ng, I have shown the invention embodied 111 a compar'atively small and portable'deviceadapted to be held manually and operated bygthe hand- "piece of'a dental-engine applied to one end,

o serves to illustrate an embodiment of the invention of theshaft of the rotor of "the mixer,- and 30 in the following explanation, and description; willi refe'r to theparts of the devlce as being constructed and adapted for a mixer or agitator of the abovementionedportableportion 14' of the shaft-is: extended thnough E and journale'd in -th'e rcentral aperture lti of thepIug-S in'such a manner that when said;

and manually held one. However, it will be manifest fromthefollowing descr ptionand explanation, that the parts can bemadeupon a much largerscale fand the body'ofthesame can be permanently mounted 'sh'ould'the device. be intended forheavy work or-d-uty:

The invention consists in certain pecu-;

liarities OfWh'GcODStIUCtiOIl, novel; arrangement and; operation 1 of thevarious f parts I it carries. The rotor 13 1s provl'ded iwith ani': j

thereof ;as will be hereinafter morefully set forth and specifically claimed.

In the accompanying drawing which Fig. l'is a plan view thereof.

Fig. 2 is a central longitudinal sectional View taken on line 2-2 'of'Fig. 1, and

Fig. 3 is a cross-sectional view taken on line 33 of Fig. 2. p

Like numerals of reference refer to corresponding parts throughout the different views of the drawing.

The reference numeral 5 designates the 1921,. Serial 1%. 4eo,04;s.- I

Speeificationnf Letters Iiatent. l Pa t -g dg -pgy,

- ma. s amina-or cH-rcAe-o, itnmorsg frame is by preference substantially cyli'n-- drical' in shape andhas one of its ends permanently closed by a transversewall 6 and its-other end provided with a slightlytapered screw threaded opening- 7-. for the reception of a centrallyaperture'd" plug-8-"which is ex ternallyscrew-threaded and slightly 111:

wardl-y; tapered for engagement with the screw-threaded opening 55 of the body or frame;

Eaclrend'of theibod-y '5 is -by preferei ice provided "at its upper-portion with an out'- ward and longitudinally disposed extension 9- which have thei'r upper surfaces .flat and located in the same plan as -wil l bereadily understood by reference to'Fig. 2 of the drawing.- 7 v Thelowerf portion of tli'ebo'd y 5 =is alsoflattened as at 1Oto provide a base on which i the mixer may rest when placed on atable i or otherfiait surface. The-vertical or--transverse-wval l-fti at one end ofthe bodv-5 "is provided in its-iiinep surfaoe with a bearing gor ournal socket 11f for: the reception 1 and .op'r

erati'on= offioneendoffthe shaft-or -axle 12 of a rotor 13 which. is preferably cylindrical in shape as'shown andis fixed-ly mountedf on the-shaft12', This shaft; preferably, has

a-reducedpor-tion- 14 whichresults in an an j nular shoulder-l'5 lo'cateid aslight distancefrom the end of t'heeroton 13 adjacent said reduced portion of said shaft; The reduced lug is screwed upasshO ninF-ig;2:of thedrawing th'e shoulder- 1-5 on the shaft 12" will be located close to; or in contact with the tion will prevent any material longitudinal 9 5 inner surface I of the plug 8",{which.-, construemovement of said shaftflandthe roton which largeinent 19 carried on the lower surface of a plate 20 which is longitudinally located on the flattened upper portion of the'body 5 and like portions of the extensions 9 for longitudinal movement. 7 v I Mounted longitudinally on the upper surface of the plate and secured thereto by means of rivets 21 is the base 22 of the holder for the container of the ingredients of the alloy or other material. As shown,

this holder has at one of its ends an upwardly extended and transversely disposed fiat member 23 which is by preference slightly resilient and at its other end a similarly disposed and constructed member 24 whlch is provided below its upper endwith Y near one of its ends.

an opening 25 for the reception of a pin 26 extended outwardly from the central portion of the stopper 27 which is used to close the open end of the container 28, which container may be made of glass or other suitable or frame 5as well as into the raceway 17 is a projection 30 which, when the rotor 13 is 'rotated' will travel in in such a manner as to cause rapid back and the race-way '17 thereof forth movement of the holder. and container when the shaft 12 is rotated through theinstrumentality of a dental-engine and its hand-piece or otherwise.

By this rapid reciprocating movement of the holder and container of the alloy it is manifest that the ingredients of the alloy will :be quickly, thoroughly and most efli ciently mixed.

To prevent displacement of the holder 22 and its block or enlargement 19, a locking plate 81 is secured to the lower surface of said block or enlargement and preferably by means of the rivets 21, the lnner ends of 'which can be reached and brazed or clinched therefrom.

bymeans of a suitable instrument inserted through the opening 7 in one end of the body after the screw plug '8 has been removed To remove the conta ner 28 from between the members 23 and 24C and clamping jaws 29 of the holder, it will be understood that said jaws which are slightly resilient, can be flexed from each other and the member 23 sprung outwardly from the member 24 when it'is obvious the receptacle 28 can be raised at its portion adjacent the member 28,after which the projection or pin 26 can be withdrawn from the opening in the member 2 1 of the holder.

The screw plug 18 is provided 7 central opening 16 with an outwardly flared extension 32 into which the front end of the.

hand-piece of the dental-engine may be ex tended when said hand-piece is placed in operatiVe position on the reduced portion 14k of the shaft 12 of the rotor in which-position said hand-piece will be readily held on the reduced portion 1e by reason of the engagement of itschuck mechanism therewith.

The distance between the lower portion of the floor of the body or frame and the journal bearings of the shaft of "the rotor is such that after the rotor has been inserted through the screw-threaded opening and before the inner end of its shaft has been inserted in the bearing thereof, said rotor can be allowed to rest on the floor of the body when by turning it to the proper position the raceway in the rotor can be positioned to receive the projection 30 carried by the holder for the container after which the inner end of the shaft of the rotor can be inserted in the bearing therefor and the plug 8 screwed in the proper position. 7

Having thus fully described my invention, what I claim as'new and desire to secureby Letters Patent is A device of the class described including a longitudinally slotted body or frame, a container-carrylng holder mounted on the frame and having a projection in slidable engage ment with the slot thereof, rotary means mounted in the frame in engagement with said projection on the holder for imparting reciprocatory movement thereto, said holder comprising an elongatedpiece having at one around its of its ends an aperturedlextension and at its I opposite end a resilient apertured extension disposed 1n parallelism w th the first named extension, sald holder having at each of 1138 sides between its ends a clamping jaw.- I

IRA A. BURNETT. 

